查询词典 transform

It is solved by means of the Fourier expansion and Hankel transform. A general solution is got on the cylindrical coordinates.

自从Biot[1，2 ] 建立饱和多孔介质本构关系和运动方程以来，人们已经作了大量研究工作[3 ，4，5] 。

For the solar radiation model, the error of Wu-model during the expansion of Fourier series is modified. Based on Mallat algorithm and Daubechies-type wavelets, a new wavelet transform model is presented for continuous solar radiation.

在太阳能辐射模型研究方面，对吴赣昌模型进行了修正，并基于Mallat算法和Daubechies系列小波，建立了连续太阳能辐射的小波变换模型。

First, the physical models associated with dislocations and cracks are respectively converted to mixed boundary value problems in mathematics. Secondly, by using the Fourier transform, a dual integral equation for a crack and an algebraic equation for a dislocation can be derived from the boundary conditions relating with a crack and a dislocation, respectively. Solving these equations, exact analytical solutions can be obtained in terms of Bessel functions in close-form.

先把位错和裂纹的物理模型写成与它们相关的边值问题，然后，利用Fourier变换将这些边值问题化成一个对偶积分方程(对位错而言，得到一个代数方程)，求解此对偶积分方程，可以获得以Bessel函数给出的封闭形式的分析解。

This function is an integral representing the Fourier transform of the line spread function.

此函数最后的型式是线扩散函数的傅立叶积分转换方程式。

The Fourier transform is an integral expression for a Fourier series applied to an infinitely long signal.

傅里叶变换式是对博里叶级数的一种积分表达式。

The mixed boundary value problem is simplified to a pair dual integral equations using Laplace and Fourier integral transform method.

利用拉普拉斯和傅立叶变换将混合边界值问题简化为对偶积分方程，并得到裂纹尖端应力场的解析解答。

Non integer order differential and integral ; Fourier transform ; seismic signal processing

非整数阶微积分；傅氏变换；地震信号处理

By means of Fourier integral transform, the steady-state response in i ntegral form of an elastic half-space subjected to a moving point load was obta i ned.

作为研究交通荷载引起的环境振动问题的基础，研究了移动集中荷载作用下弹性半空间体的稳态响应问题。

Key words: solid mechanics;electrode delamination;buckling;Fourier integral transform;singular integral equations;critical strains

关键 词：固体力学；电极脱层；屈曲；Fourier积分变换；奇异积分方程组；临界应变载荷

Aapproximation of Fourier inverse integral using Fourier transform approximation for amplitude of harmonics in a finite Fourier series summation.

富氏级数中之谐波成份以富氏转换近似并以有限级数和近似富氏逆转换。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。